目录
1. kafka架构图
2.关键概念解析
2.1 producer
2.2 consumer:
2.3 brkoer
2.4 Topic 与 Partition
2.5 AR (Assigned Replicas)
2.6 ISR(In-Sync Replicas)
2.7 OSR (Out-of-Sync Replicas)
2.8 HW (High Water-mark)
2.9 LEO (Log End Offset)
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